5421366720 has 896 divisors, whose sum is σ = 24754636800. Its totient is φ = 1083801600.

The previous prime is 5421366697. The next prime is 5421366733. The reversal of 5421366720 is 276631245.

5421366720 is a `hidden beast` number, since 542 + 1 + 36 + 67 + 20 = 666.

It is a super-2 number, since 2×5421366720² = 58782434225447116800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 19292980 + ... + 19293260.

Almost surely, 2^5421366720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5421366720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12377318400).

5421366720 is an abundant number, since it is smaller than the sum of its proper divisors (19333270080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5421366720 is a wasteful number, since it uses less digits than its factorization.

5421366720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 5421366720 is about 73629.9308705366. The cubic root of 5421366720 is about 1756.7215483496.

Adding to 5421366720 its reverse (276631245), we get a palindrome (5697997965).

The spelling of 5421366720 in words is "five billion, four hundred twenty-one million, three hundred sixty-six thousand, seven hundred twenty".